She had come so far. Nearly 85 miles to be exact, yet in the larger scheme of things, Jennifer Caldwell’s progress in the 2011 Prouty century ride meant so much more. A cancer patient since 1999, the former U.S. Ski Team member epitomized the body’s limits in its lowest moments. She was not weak; anyone who knew Caldwell, who died on Dec. 27 in Wolfeboro, N.H., could attest to that. Participating in the July benefit...